Antineoplastic: Acting to prevent, inhibit or halt the development of a neoplasm (a tumor). An agent with antineoplastic properties. For example, oxaliplatin (Eloxatin) is an antineoplastic used in the treatment of metastatic colon cancer. The term is applicable to dozens of other chemotherapy agents used to treat this an other forms of cancer.
Quick GuideUnderstanding Cancer: Metastasis, Stages of Cancer, and More
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Last Editorial Review: 5/13/2016